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common capi: Added opacity C bindings.

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Added opacity setter/getter to CAPI. They will be useful to simplify
code responsible for set visiblility of paint.

@API Additions:
Tvg_Result tvg_paint_set_opacity(Tvg_Paint* paint, uint8_t opacity)
Tvg_Result tvg_paint_get_opacity(Tvg_Paint* paint, uint8_t* opacity)
This commit is contained in:
Michal Szczecinski 2020-11-03 12:42:57 +01:00 • committed by Hermet Park
parent ec2ec6e9c6
commit 882188c752
2 changed files with 16 additions and 1 deletions
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2
inc/thorvg_capi.h
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@ -120,6 +120,8 @@ TVG_EXPORT Tvg_Result tvg_paint_scale(Tvg_Paint* paint, float factor);
TVG_EXPORT Tvg_Result tvg_paint_rotate(Tvg_Paint* paint, float degree);
TVG_EXPORT Tvg_Result tvg_paint_translate(Tvg_Paint* paint, float x, float y);
TVG_EXPORT Tvg_Result tvg_paint_transform(Tvg_Paint* paint, const Tvg_Matrix* m);
TVG_EXPORT Tvg_Result tvg_paint_set_opacity(Tvg_Paint* paint, uint8_t opacity);
TVG_EXPORT Tvg_Result tvg_paint_get_opacity(Tvg_Paint* paint, uint8_t* opacity);
TVG_EXPORT Tvg_Paint* tvg_paint_duplicate(Tvg_Paint* paint);
/************************************************************************/

15
src/bindings/capi/tvgCapi.cpp
View file

@ -162,7 +162,6 @@ TVG_EXPORT Tvg_Result tvg_paint_transform(Tvg_Paint* paint, const Tvg_Matrix* m)
}
TVG_EXPORT Tvg_Paint* tvg_paint_duplicate(Tvg_Paint* paint)
{
if (!paint) return NULL;
@ -170,6 +169,20 @@ TVG_EXPORT Tvg_Paint* tvg_paint_duplicate(Tvg_Paint* paint)
}
TVG_EXPORT Tvg_Result tvg_paint_set_opacity(Tvg_Paint* paint, uint8_t opacity)
{
if (!paint) return TVG_RESULT_INVALID_ARGUMENT;
return (Tvg_Result) reinterpret_cast<Paint*>(paint)->opacity(opacity);
}
TVG_EXPORT Tvg_Result tvg_paint_get_opacity(Tvg_Paint* paint, uint8_t* opacity)
{
if (!paint || !opacity) return TVG_RESULT_INVALID_ARGUMENT;
*opacity = reinterpret_cast<Paint*>(paint)->opacity();
return TVG_RESULT_SUCCESS;
}
/************************************************************************/
/* Shape API */
/************************************************************************/